Oven



FIG. 1 is a front perspective view of an oven showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a right side view thereof; and,

FIG. 6 is a left side view thereof.

The bottom is flat and devoid of surface ornamentation. 

CLAIM The ornamental design for a oven, as shown and described. 